云南省卫星定位基准站网速度场分析  

Velocity Field Analysis of Satellite Positioning Reference StationNetwork in Yunnan Province

作　　者：史珂 李建涛 SHI Ke;LI Jiantao(Yunnan Provincial Basic Surveying and Mapping Technology Center,Kunming 650034,China;Urumqi Institue of Urban Survey and Mapping Investigation,Urumqi 830000,China)

机构地区：[1]云南省基础测绘技术中心,云南昆明650034 [2]乌鲁木齐市城市勘察测绘院,新疆乌鲁木齐830017

出　　处：《城市勘测》2024年第2期84-87,92,共5页Urban Geotechnical Investigation & Surveying

摘　　要：利用云南省卫星导航定位基准站网系统(YNCORS)2016至2020年近5年99个基准站观测数据,采用GAMIT/GLOBK软件处理,解算得到了基准站的坐标时间序列和不同框架下的速度场。结果表明,云南省基准站ITRF2014框架下东方向平均运动速度31.84 mm/a,南方向平均运动速度为13.09 mm/a,整体运动方向为东偏南方向。以欧亚板块为运动背景场框架下的东方向平均运动速度6.83 mm/a,南方向平均运动速率3.91 mm/a;滇西南运动速率较小并且有着左旋的趋势,滇西区域运动速率较大并且明显存在着右旋的趋势。Based on the GNSS observation data of 99 reference stations in Yunnan Province Continuous Operation Reference Station Network system(YNCORS)from 2017 to 2020,using GAMIT/GLOBK software,the coordinate time series of the reference station and velocity fields under different frames are solved.The results show that under the framework of ITRF14 of Yunnan Reference station,the average moving speed in the east direction is 31.84mm/a,and the average moving speed in the south direction is 13.09mm/a.The overall moving direction is in the east-south direction.Under the framework of Eurasian plate as the moving background field,the average moving speed in the east direction was 6.83mm/a,and the average moving speed in the south direction was 3.91mm/a.The movement rate in southwest Yunnan is small and has a tendency of left rotation,while the movement rate in west Yunnan is large and has a tendency of right rotation.

关 键 词：卫星定位基准站 时间序列 噪声 框架 速度场 

分 类 号：P228[天文地球—大地测量学与测量工程]